zendframework/zf2 — pull request #1726 by adamlundrigan (2012-07-03 19:14:10+00:00)
Title: Update FlashMessenger controller plugin to extend AbstractPlugin

When using FlashMesenger plugin the following exception is raised:

```
Plugin of type Zend\Mvc\Controller\Plugin\FlashMessenger is invalid; must implement Zend\Mvc\Controller\Plugin\PluginInterface
```

Fixed by updating FlashMessenger to extend AbstractPlugin